Question

Please solve question no. 20) 1). Ans solve it in the copy and send the image.

Answer 1

Here's the answer of your problem.

Answer 2

A=bh/2

P=2a+b= h=√a^2-b^2/4

Solve for A

A=1/4b√P(P-2b)=1/4.3.√8.(8-2.3)=3centimeter squar